1. In order to avoid undue economic hardship, the competent authorities may exempt marginally compliant aircraft registered in developing countries from noise operating restrictions, while fully respecting the principle of non-discrimination, provided that such aircraft:
|
(a)
|
are granted a noise certification to the standards specified in Chapter 3, Volume 1 of Annex 16 to the Chicago Convention;
|
|
(b)
|
were operated in the Union during the five-year period preceding the entry into force of this Regulation;
|
|
(c)
|
were on the register of the developing country concerned in that five-year period; and
|
|
(d)
|
continue to be operated by a natural or legal person established in that country.
|